Thomas barrett



@uiten grutas strnt THOMAS BARRETT, 0F GHARLESTOWN, MASSACHUSETTS.

Leiters Patent N0. 79,434, date@ June so, 1868.

@te rigehulr referrer tt intime Estima mimi ant mating gant `111i tigt tame.

TC ALL WHOM AIT MAY 00N CERN Be it known that I, THOMAS BARRETT, 'of Charlestown, in the county ofMiddlesex, and Stute of Massa.- chusetts, have invented anew and useful Machine for Forming Rings on 'Carboys and Bottles; and I do hereby declare that the following is a full, clear, 'und exact description of the construction and operation of the same, reference being had to the annexed drawings, in which-- Figure 1 is a. front elevation,

Figure 2a. side elevation,

Figure V3 a. plan view, with levers S and T removed, and "q Figure 4 an enlarged section of plug C on line N and M. l

In fig. 1, L is the frame; A and B are rolls, .which rotate on pins U and V, fixed in stands D and Efwhich slide'in frame L, as shown. C is a. hollow conical plug or centre, in whichnre placed two movable fingers, 1 and 2. H is a sliding ber, having a. vertical motion, and to which are ttached links F and G, connected to.

levers S and T, for communicating al simultaneous motion to stands D and E toward or from plug C.

In fig. 2, P is a hollow screw, inserted in plug v O is u rod, passing through into plug C. The other.

letters refer to parts already described in fig. 1.

`Fig. 3 shows a plan view of the rolls A and B andthe plug.C; the levers S und 'l are omitted. R and Y are studs, to which the levers are attached, und by whichv the stands D and E are moved. The other letters refer to parts already described. i

Fig. 4 exhibits an enlarged'section of hollow plug C and a portion nof frame L, on line N M.

1 and 2 are fingers, jointed on pin 3, having inclined planes near to the ljoint, as shown. The ends ot` the fingers extend into cavities in the frame L. .AO is e rod, passing throughh'ollow screw P. The end of O is made conicztl where it cornes in contact with the inclined edges of the fingers, and is increased in size, to ll thehole lin C. I is o, spiral spring, encircling rod'O, abutting against screw P at one end, at the other against the shoul` der 'on rod O. The purpose of the spring is to keep the fingers 1 and 2 extended. P is u hollow screw, fitting into the prolonged portion of plug-C, for confining in its place and increasingor decreasing the force of'spring4 I, `und by which an automatic motion is given tothe fingers 1 und 2.

When this machine is operated, the earboy or bottleis .passed over the conical plug C, and held incontuct with the fuceof frameL. The eirpanding fingers 1 and`2 will fill the hole', preserve its shape, und keep the carboy 'or bottle central. The ca'rboy or bottle is now rotated on C, while melted glss is placed thereon. When sufiicient has been appdied, the rolls A and B are brought in contact with the revolving carboy or bottle by operating Il, the links F and G, and levers S und T, and held there until the proper form is produced.

As new and useful in this machine, I clairni 1. The rolls, of any desired shape, having n simultaneous motion toward u central plug, whether operated by the mechanism herein described, or any other substantially the same, for shaping or forming the rings of carboys or bottles. i

2. I claim the expansive plug C, constructed und operating substantially in the manner and for the purpose herein specified. 'l Y THOMAS BARRETT.

Witnesses:

CHARLES D. DUNTON, J. B. KENDALL. 

